PARIS (AFP) - Al-Qaeda could be seeking new sanctuaries in unstable African nations and the continent's disparate armed Islamist groups may foster closer ties under the Al-Qaeda umbrella, experts and officials warned. The organisation founded by the Saudi-born Osama bin Laden has largely been driven out of former safe-haven Afghanistan, while it has been battered by US drone attacks across the border in Pakistan, leaving it in need of new bases. Al-Qaeda has already established links with a number of African Islamist groups. Its declared north Africa affiliate is Al-Qaeda in the Islamic Maghreb (AQIM). Somalia's Shebab also swore allegiance to bin Laden, who was killed by US commandos in May. "Al-Qaeda traditionally has taken advantage of areas that are wracked by conflict, turmoil and lack of government, it is a safe haven they seek to launch attacks," said John Brennan, US President Barack Obama's top anti-terrorism official. Somalia, without a stable government since 1991 and currently led by a weak government that is largely confined to the capital Mogadishu, could therefore be an ideal sanctuary, Brennan added. "Somalia is one of the most challenging areas of the world because it has this internal conflict, it has such a devastating famine, and it is an area that Al-Qaeda has tried regularly to exploit," he added. AQIM has been linked to attacks and kidnappings across north Africa. And the already volatile region has been further destabilised by the months-long conflict in Libya, which may have flooded the region with weapons once controlled by Moamer Kadhafi's fallen regime, officials said. Vast, sparsely populated areas across countries such as Mauritania, Mali and Algeria, could also offer senior Al-Qaeda leaders a safe haven, some officials said. Although Nigeria has little appeal as a territorial base, the Boko Haram Islamist group there, is also thought to have ideological links to Al-Qaeda. Boko Haram claimed responsibility for August's suicide bomb attack in Abuja at the UN headquarters in Nigeria that killed 24 people. Shebab, AQIM and Boko Haram are "each individually of concern," US general Carter Ham, who heads the Africa command, said recently in Washington. "But what really concerns me is at least a stated intent for those organisations to link and synchronise their efforts," he added.